A HEVC Video Steganalysis Against DCT/DST-Based Steganography

Abstract

The development of video steganography has put forward a higher demand for video steganalysis. This paper presents a novel steganalysis against discrete cosine/sine transform (DCT/DST)-based steganography for high efficiency video coding (HEVC) videos. The new steganalysis employs special frames extraction (SFE) and accordion unfolding (AU) transformation to target the latest DCT/DST domain HEVC video steganography algorithms by merging temporal and spatial correlation. In this article, the distortion process of DCT/DST-based HEVC steganography is firstly analyzed. Then, based on the analysis, two kinds of distortion, the intra-frame distortion and the inter-frame distortion, are mainly caused by DCT/DST-based steganography. Finally, to effectively detect these distortions, an innovative method of HEVC steganalysis is proposed, which gives a combination feature of SFE and a temporal to spatial transformation, AU. The experiment results show that the proposed steganalysis performs better than other methods.

A comprehensive review of video steganalysis

“…However, a few researchers start putting forward some investigation on the H.265 (HEVC) videos. In that perspective, we can cite, for example, Huang et al in [15] and Shi et al in [16]. A lot is yet to be done with this specific type of videos.…”

“…in [15] and Shi et al. in [16]. A lot is yet to be done with this specific type of videos. In theory, it is argued that for a steganographic algorithm to be defeated, it is necessary for the steganography to be detected with more success than a random guess, that is, with a true positive rate greater than 50% and a false positive rate less than 50%.…”